Powercore 4 and Powercore 4 S/A
- Race inspired price point muffler made for maximum power output
- Aircraft quality extruded aluminum canister with stainless steel components
- Spark arrestor included on S/A models, see footnotes
California law generally prohibits the sale and installation of aftermarket exhaust products UNLESS such products are installed on vehicles that did not come originally equipped with catalytic converters or are used only for racing and are never used upon a California highway.